Heel-cushion.



PATENTED SEPT. 8, 1908.

M. BYRNYE. V EEEL CUSHION. Ammonium FILED we. 23, 1906.

scribed and claimed Bunion seems i Anton @lult ij, I

PATENT MATTHEW BYRNE, OF SAN FRANCISCO, CALIFORNIA.

No. 897,874. specification of Applicetion 'filed August'23,

Te oll whom it may concern:

Be it known that l, MATTHEW BYRNE, a

' citizen of the United States, residing at San the some.

This invention relatestov iln IOVGlilODtH inpneuinatic cushions for use-1n )oots or shoes,

especially the heel portions of the some, and I it consists in the construction, co nbinutioli. and arrangement of parts,hereinafter de- The. object of the invention is toprovide a. heel cushion of this character, iirwliieli the rubber-body orfabric providedwith airtight or hermetidully-sealed ce'lls, whereby the cushioning or elastic action of tl'1e. (lev ice will begreatljy increased. i

The above and otherobjects, winch will appear as the intture'of my in'ventionis better understood, ere necoinpli-shed by means of the construction illustrated in the accompanying drawings, in .which' -f Figure 1 is stop plan view of the im )rovcd pneumatic heel cushion; Figs. '2 znnlS are respectively longitudinal and transverse sectional views throughthe some; and Fig. 4 is a bottom plan view of the cushion. 'lho-present enibodimel'it of the invention C uAI'IPIlSOS a tread'lift], prcferably'of leather,

and shaped to (it the heel and shanlc' portions of the shoein which it is used. Attached 'to" the'bottoln of the lift or layer 1 is :i h'tyer or body of rubber 2. This body 2,-which' forms the cushion roper is pretereblyin the lorrn of {t solt .rub ger fubric or structure consisting of a lot layer or sheet 3, l'roni the bottom face of which project at plurality of l'rusto;

conical projections 4, whicliure made hollow endair-tight, as clearly shownin. Fig. 2.

- These projections 4; form air-t ight orherinetically-sea led cells,- the cavities 5-inwhieh ex.- tend intothe sheet or body 3; ol' rubber, as shown. It will be seen thnl when the cushionis in use, these projections will be partially collapsed. end the air within the seine. will be compressed to increase the elzistieity of. the

Letters rece t. Patented. Sept. 8, 1908.

.1906. Serial 1%. 331,7-6.

rubber, and the cushioning action of the (ilebe provided and arranged between them in the sheet orbody 3,3,16S1T121l-l'CaVltlBsOlTB- .cesses 6, which are open at the'bottom'of the rubber bo(.ly,-as seen in Fig. 3. The cushion is preferably retained inthe shoe by a retaining strip or layer 7, which is adapted to be glued or cemented in the-shoe. A transverse row of stitching 8. preferably used for securing the three together. r

The use of the inventi'on-is clearly shown in Fig. 2' of the drawing. It Will be observed that the provision of the cells or' cavities in the rubber body or fabric 2 greatly increases the cushioning action of the device, and Tenders the rubber more elastic.

cushion, and hence tend to expend the cush- -der such pressure am hence compensate for odd to t w elasticity of the cushion. Having thus described my invention, Whet- A heel eushionf or shoes comprising a relatively thick body having :1. plurality of frusto-conicul projections clePending from, its lowerfzice, hermetically closed vertically disposed air-'chsnn-bors arranged in each of the severalprojections of the body, aitorwerdly l'ztce ol snid bod y between said air cells, a retaining strapcemented 1D the shoe beneath said body, ends transverse row of stitching passingthrough the lift, the tongue andtlio retun'nng strappslnd tread lift pl'OjQCblllQ' be MAWHEW BYRNE.

Witnesses: ll vV. Woonns,

l I. F. STANFonn.

vice: ,Any number of the projections niey parts orloyers of the device It will bennderstood tlfat theprojections' l'spreud laterally under the pressure on the ion later-all The o enin 's 6 contract un- Y H F b .l clz tii-n asneW, and desire to secure by Let said body, zipliable treod'lift applied over yond the tongue and lyingwjell'over the in' .such expensive 'iorce and correspondingly.

projecting tongue carried by sa d body, up- -wurdly extending wells'l'orined m the lower 

